Half to john i



(No Model.)

0. W. RUSSELL.

MAST ARM FOR ELECTRIC LIGHTS.

Patented Nov. 6, 1888.

WITNESSES. INVENTOR- (9% I" ."ufl/ 1/ u. PETERS. Phuwgjlho n hw. wmin mn, n.1c.

UNITED STATES FATENT CFFICE.

CHARLES \V. RUSSELL, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE- HALE TO JOHN I. DRAKE, 'OF SAME PLACE.

MAST-ARM FOR ELECTRIC LIGHTS.

SPECIFICATION forming part of Letters Patent No. 392,228, dated November 6, 1888.

Application filed April 2, 1888. Serial No. 269,281.

To all whom it may concern:

Be it known that 1, CHARLES W. RUssELL, of. Providence, in the State of Rhode Island, have made certain new and useful Improvements in Mast-Arms for Electric Lights; and I do hereby declare that the following specification, taken in connection with the drawings making a part of the same, is a full, clear, and exact description thereof.

Figure l is a view of my complete device. Fig. 2 is a vertical longitudinal section of the outer end of the supporting-arm. Fig. 3 is a cross-section of the lower tube of the supporting-arm, showing the position of the carrier. Fig. 4. is a cross-section on line 0. Fig. 5 is a cross-section on line X X. Fig. 6 is a horizontal section on line W W.

My invention relates to supporting devices for electric lights where it is necessary to support them over the street to escape the interference of objects immediately surrounding them; and it consists in the construction, arrangement, and operation of the mechanism for extending and withdrawing the same and at the same time protecting such mechanism from the weather, as hereinafter described.

In the drawings, A is a perpendicular pole set in the sidewalk near the curbstone in the usualjway. From the pole A, and attached thereto one above the other at the desired height, are horizontally projecting hollow arms or tubes BIB, having suitable brace-rods,

The outer ends of the arms B B terminate in a head-piece, D, which contains a loose pulley, E. The arm or tube B has a 1ongitudinal slot or opening, F, to permit the movement of the carrier G, which has a proj eetingear, M, andjtravels upon beveled wheels H H within the arm B.

I is albelt or cord, which has its ends made fast to the end of the carrier G, and passes through the arms B B, over the pulley E, through the pole A, and is coiled around an arbor or wheel, J ,which rests in suitable bear- (No model.) I

ings, K K. To an extension of the axis of the 5 arbor or wheel J a crank, N, may be applied to operate the device.

0 is the lighting apparatus, which is suspended from the ear M of the carrier G, and to which the wires conveying-the current are attached, so as not to interfere with the operations hereinafter described.

Taking the position of the several parts as shown in the drawings, the person in charge, whenever it is necessary to fix or repair the light, ascends the perpendicular pole A and adjusts the crank N as shown in Fig. 6. As the crank is turned in the proper direction, the carrier G, with its suspended light, is drawn in to within easy reach, where it remains while the necessary attention is given to it, when the crank is reversed and the light carried outward to its original position. It will now be readily observed that the belt or cord I, the pulley E, and the carrier Gare all completely protected from the weather and operate within the hollow arms or tubes B B and the head-piece I).

WVhat I claim as my invention, and desire to secure by Letters Patent, is '70 1. The combination of an upright pole, A, and the hollow horizontally-projecting arms B B, terminating in a head-piece, D, forhold ing and protecting the operating mechanism, substantially as described.

2. The combination of the horizontally-pro jecting arms B B, terminating in a common head-piece, D, the pulley E, andbelt I, passing around said pulley and through the hollow arms B and B, and the carrier G, having bev- 8o eled wheels II, the whole constructed and operating in the manner substantially as described.

CHAS. IV. RUSSELL.

WVitnesses:

WALTER B. VINCENT, T. H. ADAMSON. 

